diff --git a/CHANGELOG.md b/CHANGELOG.md
index e1c6ac0..2ad5f8c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 Only accretive/fixative changes will be made from now on.
 
 * 1.2.next in progress
+  * Fix #174 by removing `:property-separator` from "etc" map and defaulting H2 to `";"` for this.
   * Switch to `tools.build` for running tests and JAR building etc.
 
 * 1.2.689 -- 2021-08-01
diff --git a/src/next/jdbc/connection.clj b/src/next/jdbc/connection.clj
index 343a87a..6a1aaa7 100644
--- a/src/next/jdbc/connection.clj
+++ b/src/next/jdbc/connection.clj
@@ -71,8 +71,10 @@
    "duckdb"          {:classname "org.duckdb.DuckDBDriver"
                       :host :none}
    "h2"              {:classname "org.h2.Driver"
+                      :property-separator ";"
                       :host :none}
-   "h2:mem"          {:classname "org.h2.Driver"}
+   "h2:mem"          {:classname "org.h2.Driver"
+                      :property-separator ";"}
    "hsql"            {:classname "org.hsqldb.jdbcDriver"
                       :alias-for "hsqldb"
                       :host :none}
@@ -161,7 +163,7 @@
     :as db-spec}]
   (let [etc (dissoc db-spec
                     :dbtype :dbname :host :port :classname
-                    :dbname-separator :host-prefix
+                    :dbname-separator :host-prefix property-separator
                     :jdbcUrl)]
     (if jdbcUrl
       [jdbcUrl etc]